Home / 38,728.80-58,136.40-36,190.80

Finding the Fourth Proportional to 38,728.80, 58,136.40 and 36,190.80

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Solution

The fourth proportional to 38,728.80, 58,136.40 and 36,190.80 is: 54,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.80 : 58,136.40 = 36,190.80 : x
  2. Step 2: Convert to fraction form
    38,728.80/58,136.40 = 36,190.80/x
  3. Step 3: Cross multiply
    38,728.80x = 58,136.40 × 36,190.80
  4. Step 4: Simplify right side
    38,728.80x = 2,104,002,825.12
  5. Step 5: Solve for x
    x = 2,104,002,825.12/38,728.80
  6. Step 6: Final answer
    x = 54,326.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.